Robert Porritt
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View article: Predicting seismic amplitudes with machine learning
Predicting seismic amplitudes with machine learning Open
The accurate estimation of seismic wave amplitude is vital to precisely determine the yield, magnitude, and event discrimination possible for a given network – a critical element in nuclear explosion monitoring. This task is complicated by…
View article: Performance of synthetic DAS as a function of array geometry
Performance of synthetic DAS as a function of array geometry Open
Distributed Acoustic Sensing (DAS) can record acoustic wavefields at high sampling rates and with dense spatial resolution difficult to achieve with seismometers. Using optical scattering induced by cable deformation, DAS can record strain…
View article: Amplitude Calibration for Distributed Acoustic Sensing
Amplitude Calibration for Distributed Acoustic Sensing Open
View article: Evaluation of passive source DAS methods on an explosive source
Evaluation of passive source DAS methods on an explosive source Open
View article: Integration of Waveform Simulation Methods
Integration of Waveform Simulation Methods Open
The generation of synthetic seismograms through simulation is a fundamental tool of seismology required to run quantitative hypothesis tests. A variety of approaches have been developed throughout the seismological community and each has t…
View article: Evaluation of Passive source das methods on the source physics experiment (spe) Phase II
Evaluation of Passive source das methods on the source physics experiment (spe) Phase II Open
View article: The Global DAS Month of February 2023
The Global DAS Month of February 2023 Open
During February 2023, a total of 32 individual distributed acoustic sensing (DAS) systems acted jointly as a global seismic monitoring network. The aim of this Global DAS Month campaign was to coordinate a diverse network of organizations,…
View article: Evaluation of Potential DAS Array Geometries for the Source Physics Experiment, Phase III
Evaluation of Potential DAS Array Geometries for the Source Physics Experiment, Phase III Open
Distributed Acoustic Sensing (DAS) is a rapidly developing technology that can record acoustic wavefields at high sampling rates and with dense spatial spacing difficult to achieve with seismometers. However, the geophysical community has …
View article: An Appraisal of the Performance and Characteristics of Summary Rays Calculated for the SALSA3D Traveltime Dataset
An Appraisal of the Performance and Characteristics of Summary Rays Calculated for the SALSA3D Traveltime Dataset Open
View article: An Analysis of Published DAS Studies for Application to SPE Phase III
An Analysis of Published DAS Studies for Application to SPE Phase III Open
Distributed Acoustic Sensing (DAS) is an emerging technology capable of recording the acoustic wavefield at unprecedented spatial resolution. However, this new tool requires significant refinements before it becomes operational for explosi…
View article: A Metadata Exchange Model for Distributed Acoustic Sensing (DAS) by the DAS-RCN Data Management Team
A Metadata Exchange Model for Distributed Acoustic Sensing (DAS) by the DAS-RCN Data Management Team Open
View article: A Catalog of Temporally Localized Systematic Deviations in Global Body Wave Travel-Time Measurements
A Catalog of Temporally Localized Systematic Deviations in Global Body Wave Travel-Time Measurements Open
Accurate measurements of the arrival times of seismic waves are crucial for seismological analyses such as robust locations of earthquakes, characterization of seismic sources, and high-fidelity imaging of the Earth’s interior. However, th…
View article: Comparative Study of the Performance of Seismic Waveform Denoising Methods
Comparative Study of the Performance of Seismic Waveform Denoising Methods Open
View article: Use of High Performance Computing to Generate and Utilize 3D Tomographic Velocity Models
Use of High Performance Computing to Generate and Utilize 3D Tomographic Velocity Models Open
View article: Comparative Study of the Performance of Seismic Waveform Denoising Methods (Lightning slide)
Comparative Study of the Performance of Seismic Waveform Denoising Methods (Lightning slide) Open
View article: Crustal Scale Travel Time Prediction with the SALSA3D Framework and Machine Learning
Crustal Scale Travel Time Prediction with the SALSA3D Framework and Machine Learning Open
The SALSA3D project aims to improve our models used in travel time prediction. The current version uses tomographic modeling for propagation through the Earth’s mantle because of the large number (order of millions) of observations of seis…
View article: A Metadata Exchange Model for Distributed Acoustic Sensing (DAS)
A Metadata Exchange Model for Distributed Acoustic Sensing (DAS) Open
View article: 0.340909091
0.340909091 Open
View article: Large Lithospheric Seismic Velocity Variations Across the Northern Canadian Cordillera Imaged by Ambient Noise Tomography
Large Lithospheric Seismic Velocity Variations Across the Northern Canadian Cordillera Imaged by Ambient Noise Tomography Open
Global-scale seismic velocity models of the Northern Canadian Cordillera show high velocities to the east of the Cordilleran deformation front and low velocities to the west. This velocity contrast is consistent with othe…
View article: Lithospheric <i>S</i> Wave Velocity Variations Beneath the Mackenzie Mountains and Northern Canadian Cordillera
Lithospheric <i>S</i> Wave Velocity Variations Beneath the Mackenzie Mountains and Northern Canadian Cordillera Open
The Mackenzie Mountains (MMs) in the Yukon and Northwest Territories, Canada, are an enigmatic mountain range. They are currently uplifting (Leonard et al., 2008, https//doi.org/10.1029/2007JB005456 ), yet are about 700 km from the nearest…
View article: Insights from summary ray calculations on the SALSA3D global dataset.
Insights from summary ray calculations on the SALSA3D global dataset. Open
View article: Noise Suppression and Event Identification: Two Important Components of the Processing Pipeline for Seismic Monitoring.
Noise Suppression and Event Identification: Two Important Components of the Processing Pipeline for Seismic Monitoring. Open
View article: Waveform Methods in GNDD Signal Propagation.
Waveform Methods in GNDD Signal Propagation. Open
View article: Denoising Seismic Signals Using Wavelet-Transform-Based Neural Networks.
Denoising Seismic Signals Using Wavelet-Transform-Based Neural Networks. Open
View article: Evaluation of Ground Coupling Tests of a Fiber-Optic Cable at the Sandia Facility for Acceptance, Calibration, and Testing for Distributed Acoustic Sensing.
Evaluation of Ground Coupling Tests of a Fiber-Optic Cable at the Sandia Facility for Acceptance, Calibration, and Testing for Distributed Acoustic Sensing. Open
View article: SALSA3D: Updated Tomographic Velocity Models for Improved Travel-Time Prediction and Uncertainty .
SALSA3D: Updated Tomographic Velocity Models for Improved Travel-Time Prediction and Uncertainty . Open
View article: Comparative Study of the Performance of Seismic Waveform Denoising Methods Using Local and Near-Regional Data.
Comparative Study of the Performance of Seismic Waveform Denoising Methods Using Local and Near-Regional Data. Open
View article: Developing a Consistent Travel-Time Framework for Comparing Three-Dimensional Velocity Models for Seismic Location Accuracy
Developing a Consistent Travel-Time Framework for Comparing Three-Dimensional Velocity Models for Seismic Location Accuracy Open
View article: Comparative Study of the Performance of Seismic Waveform Denoising Methods Using Local and Near-Regional Data.
Comparative Study of the Performance of Seismic Waveform Denoising Methods Using Local and Near-Regional Data. Open
View article: Denoising Seismic Signals Using Wavelet-Transform-Based Neural Networks.
Denoising Seismic Signals Using Wavelet-Transform-Based Neural Networks. Open